1000123031313 has 12 divisors (see below), whose sum is σ = 1650996750208. Its totient is φ = 571498875000.

The previous prime is 1000123031309. The next prime is 1000123031317. The reversal of 1000123031313 is 3131303210001.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1000123031309) and next prime (1000123031317).

It is not a de Polignac number, because 1000123031313 - 2² = 1000123031309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1000123031317) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7937484313 + ... + 7937484438.

Almost surely, 2^{1000123031313} is an apocalyptic number.

It is an amenable number.

1000123031313 is a deficient number, since it is larger than the sum of its proper divisors (650873718895).

1000123031313 is a wasteful number, since it uses less digits than its factorization.

1000123031313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15874968764 (or 15874968761 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 1000123031313 its reverse (3131303210001), we get a palindrome (4131426241314).

The spelling of 1000123031313 in words is "one trillion, one hundred twenty-three million, thirty-one thousand, three hundred thirteen".